The "yips" is a set of conditions associated with having your nerves badly rattled. Can affect the performance of athletes and in the case of combat veterans is a symptom of PTSD(Post Traumatic Stress Disorder).

1) I got the yips and bogeyed the rest of the holes.

2) My post military career prospects aren't looking so good with a bad case of the combat yips and and drinking myself to sleep every night.

yip is a term which is used to describe the constant repition of the same chirp in a chirp fight with the mentality that they're good or clever. There are 3 degrees of yip
3rd degree: Constant repition of the same chirp.
2nd degree: Constant repition and interuption of a chirp
1st degree: To yip the word "yip" itself.
Commonly used yips are as follows:

you're not good
GAY
ur gay
Shut up
(inaudible noises)
OH YA?
NO!

*BE WARNED! A 1st degree yip is a terrible offense, and you're automatically not good for using it.

Person 1: "Hey do you know what time the bu-"
Person 2: "GAYYYYYY!!"
Person 1: "Are you gonna let me fini-"
Person 2:"GAYYYYYY!!"
Person 1:"Whatever. All you do is yip..."
Person 2: "(thoughts) hehe, i'm really good and clever."